Toward the construction of a technology platform for chemicals production from methanol: d-lactic acid production from methanol by an engineered yeast Pichia pastoris |
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Authors: | Yamada Ryosuke Ogura Koichi Kimoto Yusuke Ogino Hiroyasu |
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Institution: | 1.School of Life Science and Technology, Inner Mongolia University of Science and Technology, Baotou, 014010, China ;2.Inner Mongolia Key Laboratory for Biomass-Energy Conversion, Baotou, 014010, China ;3.Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing, 100085, China ; |
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Abstract: | In this study, the effects of di-n-butyl phthalate (DBP) on the phyllosphere bacterial community of field mustard (Brassica campestris L.) at the five-leaf stage were investigated. The indigenous alpha-diversity of the phyllosphere bacteria was altered after spraying with different concentrations of DBP. Shannon diversity indices were significantly changed on day 5 after treatment at DBP concentrations >?400 mg L?1 (P?>?0.05). Nevertheless, the difference between treatment and control was not significant on day 9 after DBP treatment (P?>?0.05). Exposure to DBP resulted in a decrease in Proteobacteria and Firmicutes, and an increase in Actinobacteria at all sampling intervals. These changes included significant increases in the relative abundance of Paracoccus and Rhodococcus, and significant decreases in that of Pseudomonas, Exiguobacterium, an unclassified genus of Pseudomonadaceae, and an unclassified genus of Enterobacteriaceae. This study provides new evidence for the possibility of using phyllosphere microbiota to remediate DBP contamination. |
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